Earnings Per Share (Unaudited) (Tables)

3 Months Ended

Mar. 31, 2012

Earnings Per Share [Abstract]

Reconciliation of net income and weighted-average shares of common stock outstanding

Following is a reconciliation of net income and weighted-average shares of common stock outstanding for purposes of calculating diluted net income per share (in millions, except per share amounts):

	Three Months Ended
	March 31,
	2012			2011
Net income	$	1,001		$	1,861
Net income attributable to noncontrolling interests	(237		)	(362		)
Net income attributable to FCX common stockholders	$	764		$	1,499
Weighted-average shares of common stock outstanding	949			946
Add stock issuable upon exercise or vesting of:
Dilutive stock optionsa	5			8
Restricted stock units	1			1
Weighted-average shares of common stock outstanding
for purposes of calculating diluted net income per share	955			955
Diluted net income per share attributable to FCX      common stockholders	$	0.80		$	1.57

a. Potential additional shares of common stock that were anti-dilutive totaled approximately three million for first-quarter 2012 and approximately two million for first-quarter 2011.